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2023-05-19 07:00:09

“PKIX路径构建失败”和“无法找到请求目标的有效认证路径”

我试图使用twitter4j库为我的java项目获得推文，它在封面下使用java.net.HttpURLConnection(可以在堆栈跟踪中看到)。在我第一次运行时，我得到了一个关于证书sun.security.validator.ValidatorException和sun.security.provider.certpath.SunCertPathBuilderException的错误。然后我添加了twitter证书:

C:\Program Files\Java\jdk1.7.0_45\jre\lib\security>keytool -importcert -trustcacerts -file PathToCert -alias ca_alias -keystore "C:\Program Files\Java\jdk1.7.0_45\jre\lib\security\cacerts"

但是没有成功。以下是获取推文的流程:

public static void main(String[] args) throws TwitterException {
    ConfigurationBuilder cb = new ConfigurationBuilder();
    cb.setDebugEnabled(true)
        .setOAuthConsumerKey("myConsumerKey")
        .setOAuthConsumerSecret("myConsumerSecret")
        .setOAuthAccessToken("myAccessToken")
        .setOAuthAccessTokenSecret("myAccessTokenSecret");
    
    TwitterFactory tf = new TwitterFactory(cb.build());
    Twitter twitter = tf.getInstance();
    
    try {
        Query query = new Query("iphone");
        QueryResult result;
        result = twitter.search(query);
        System.out.println("Total amount of tweets: " + result.getTweets().size());
        List<Status> tweets = result.getTweets();
        
        for (Status tweet : tweets) {
            System.out.println("@" + tweet.getUser().getScreenName() + " : " + tweet.getText());
        }
    } catch (TwitterException te) {
        te.printStackTrace();
        System.out.println("Failed to search tweets: " + te.getMessage());
    }

这里是错误:

sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
Relevant discussions can be found on the Internet at:
    http://www.google.co.jp/search?q=d35baff5 or
    http://www.google.co.jp/search?q=1446302e
TwitterException{exceptionCode=[d35baff5-1446302e 43208640-747fd158 43208640-747fd158 43208640-747fd158], statusCode=-1, message=null, code=-1, retryAfter=-1, rateLimitStatus=null, version=3.0.5}
    at twitter4j.internal.http.HttpClientImpl.request(HttpClientImpl.java:177)
    at twitter4j.internal.http.HttpClientWrapper.request(HttpClientWrapper.java:61)
    at twitter4j.internal.http.HttpClientWrapper.get(HttpClientWrapper.java:81)
    at twitter4j.TwitterImpl.get(TwitterImpl.java:1929)
    at twitter4j.TwitterImpl.search(TwitterImpl.java:306)
    at jku.cc.servlets.TweetsAnalyzer.main(TweetsAnalyzer.java:38)
Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alerts.getSSLException(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
    at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
    at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
    at sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source)
    at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
    at sun.security.ssl.Handshaker.processLoop(Unknown Source)
    at sun.security.ssl.Handshaker.process_record(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at twitter4j.internal.http.HttpResponseImpl.<init>(HttpResponseImpl.java:34)
    at twitter4j.internal.http.HttpClientImpl.request(HttpClientImpl.java:141)
    ... 5 more
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 20 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 26 more
Failed to search tweets: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

当前回答

这是针对Glassfish服务器的:

通常Glassfish会看着仙人掌。证书文件存放在GLASSFISH_SERVER\glassfish\domains\domain1\config目录下。您可以更改此配置或替换cacerts。JKS文件和cacerts文件。

Glassfish使用了一些默认的JVM选项:

 -XX:+UnlockDiagnosticVMOptions
 -XX:NewRatio=2
 -XX:MaxPermSize=192m
 -Xmx512m
 -client
 -javaagent:C:/glassfish5/glassfish/lib/monitor/flashlight-agent.jar
 -Djavax.xml.accessExternalSchema=all
 -Djavax.net.ssl.trustStore=C:\glassfish5\glassfish\domains\domain1/config/cacerts.jks
 -Djdk.tls.rejectClientInitiatedRenegotiation=true
 -Djdk.corba.allowOutputStreamSubclass=true
2022-06-22 13:50:06

其他回答

1. 检查证书

尝试在浏览器中加载目标URL并查看网站的证书(通常可以通过带有锁标志的图标访问)。它在浏览器地址栏的左边或右边)，无论它是否过期或由于其他原因不受信任。

2. 安装最新版本的JRE和JDK

新版本通常附带一组更新后的受信任证书。

如果可能的话，卸载旧版本。这将使错误配置错误显式地出现。

3.检查您的配置:

检查JAVA_HOME环境变量指向的位置。 检查您使用哪个java版本来运行程序。在IntelliJ中检查: 文件->项目结构…—>项目设置—>项目—>项目SDK: 文件->项目结构…—>平台设置—>个sdk

4. 从新的Java版本复制整个密钥存储库

如果您使用的JDK不是最新可用的JDK，请尝试将%JAVA_HOME%/jre/lib/security/cacerts文件替换为最新安装的jre中的新文件(先做备份)，正如@jeremy-goodell在他的回答中建议的那样

5. 向您的密钥存储库中添加证书

如果以上都不能解决您的问题，请使用keytool将证书保存到Java的密钥存储库:

keytool -trustcacerts -keystore "%JAVA_HOME%jre\lib\security\cacerts" -storepass changeit -importcert -alias <alias_name> -file <path_to_crt_file>

正如@MagGGG在他的回答中建议的那样，可以从浏览器中获得带有证书的文件。

注1:您可能需要对链中的每个证书重复此操作，直到站点的证书。从根根开始。

注意2:<alias_name>在存储中的键中应该是唯一的，否则keytool将显示错误。

要获取存储中所有证书的列表，您可以运行:

keytool -list -trustcacerts -keystore "%JAVA_HOME%jre\lib\security\cacerts" -storepass changeit

如果出现问题，这将帮助您从存储中删除证书:

keytool -delete -alias <alias_name> -keystore "%JAVA_HOME%jre\lib\security\cacerts" -storepass changeit
2017-09-13 11:10:26

我想为smtp.gmail.com导入证书。对我来说唯一有效的办法就是

输入命令查看该证书 D:\openssl\bin\openssl.exe s_client连接smtp.gmail.com:465 将-----BEGIN CERTIFICATE-----和-----END CERTIFICATE-----之间的行复制并保存到一个文件gmail.cer中 运行 keytool -import -alias smtp.gmail.com -keystore "%JAVA_HOME%/jre/lib/security/cacerts" -file C:\Users\Admin\Desktop\gmail.cer 输入密码:changeit 单击“是”，导入证书 重新启动Java

现在运行命令，就可以开始了。

2017-01-23 04:53:04

我遇到了同样的问题，但更新错误的jre在我的linux机器。tomcat很可能正在使用不同的jre，而您的cli提示符被配置为使用不同的jre。

确保您选择了正确的jre。

步骤# 1:

ps -ef | grep tomcat

你会看到如下内容:

root     29855     1  3 17:54 pts/3    00:00:42 /usr/java/jdk1.7.0_79/jre/bin/java

现在用这个:

keytool -import -alias example -keystore  /usr/java/jdk1.7.0_79/jre/lib/security/cacerts -file cert.cer
PWD: changeit

*。Cer文件可以如下所示生成:(或者您可以使用自己的)

openssl x509 -in cert.pem -outform pem -outform der -out cert.cer
2020-05-21 01:18:20

经过半天的努力，又找到了一个解决问题的方法。我能够在MAC 10.15.5 (Catalina)中解决这个问题。遵循以下步骤。

This problem occurs when we are running behind a company proxy , In my case its Zscaler. Open Key chain access, export CA certificate.(Select CA certificate, File->export items and save with the desired name) Copy the path of existing cacerts from java folder(/Library/Java/JavaVirtualMachines/jdk1.8.0_251.jdk/Contents/Home/jre/lib/security/cacerts ) Open terminal and navigate to the Keytool folder (/Library/Java/JavaVirtualMachines/jdk1.8.0_251.jdk/Contents/Home/jre/bin ) Run the below command. Keytool -importcert - file (Path to exported cert from the keychainaccess) -alias (give a name) -keystore (Path of existing cacerts from java folder) sudo Keytool -importcert -file /Users/Desktop/RootCA.cer -alias demo -keystore /Library/Java/JavaVirtualMachines/jdk1.8.0_251.jdk/Contents/Home/jre/lib/security/cacerts It will ask for password , give it as : changeit It asks for confirmation , Say : yes

完成所有这些步骤后，退出eclipse并启动新的会话。

2020-07-24 13:05:33

它是对答案https://stackoverflow.com/a/36427118/1491414的补充。由于@MagGGG

请确保您有管理员权限 请使用双引号作为密钥存储库路径(-keystore C:\Program Files (x86)\Java\ jre1.6.0_22\lib\security\cacerts")，因为在Windows操作系统中，默认的安装位置将是程序文件，由于程序文件之间的空格，您将得到一个错误。

2017-12-23 20:32:12

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